The vapour pressure of water is `12.3kPa` at 300 K. The V.P. of 1M solution of a non-volatile non electrolyte solution is

Question

The vapour pressure of water is `12.3kPa` at 300 K. The V.P. of 1M solution of a non-volatile non electrolyte solution is

The vapour pressure of water is `12.3kPa` at 300 K. The V.P. of 1M solution of a non-volatile non electrolyte solution is
A. `10.08 kPa`
B. `12.08 kPa`
C. `8.3kPa`
D. `10.3kPa`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
As the solution is quite dilute `1M ~~ 1m`. Thus, 1 mol of solute is present in `100g (55.5mol)` of water
`(1)/(1+55.5) = (12.3-p_(A))/(12.3)`
`p_(A) = 12.08 k Pa`

5 views Answered 2023-02-05 15:29